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authorAdrian Hunter <adrian.hunter@intel.com>2017-03-20 20:50:32 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2017-04-24 22:41:26 +0300
commitd38dcad4e7b48f3d68d5d058f8f4f52a99862e6e (patch)
tree654812cebbf2ed25a161d9b405f038fe20d381a8 /drivers/mmc/host/sdhci-pxav3.c
parent5a436cc0af6202265de0d2d2d35f1b4fd85caf3b (diff)
downloadlinux-d38dcad4e7b48f3d68d5d058f8f4f52a99862e6e.tar.xz
mmc: sdhci: Let drivers decide whether to use mmc_retune_needed() with pm
Devices might save and restore tuning values so that re-tuning might not be needed after a pm transition. Let drivers decide by pushing the mmc_retune_needed() logic down to them. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Diffstat (limited to 'drivers/mmc/host/sdhci-pxav3.c')
-rw-r--r--drivers/mmc/host/sdhci-pxav3.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c
index 132670a612a0..22ed90433d29 100644
--- a/drivers/mmc/host/sdhci-pxav3.c
+++ b/drivers/mmc/host/sdhci-pxav3.c
@@ -527,6 +527,8 @@ static int sdhci_pxav3_suspend(struct device *dev)
struct sdhci_host *host = dev_get_drvdata(dev);
pm_runtime_get_sync(dev);
+ if (host->tuning_mode != SDHCI_TUNING_MODE_3)
+ mmc_retune_needed(host->mmc);
ret = sdhci_suspend_host(host);
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
@@ -560,6 +562,9 @@ static int sdhci_pxav3_runtime_suspend(struct device *dev)
if (ret)
return ret;
+ if (host->tuning_mode != SDHCI_TUNING_MODE_3)
+ mmc_retune_needed(host->mmc);
+
clk_disable_unprepare(pxa->clk_io);
if (!IS_ERR(pxa->clk_core))
clk_disable_unprepare(pxa->clk_core);